Single-shot multispectral birefringence mapping by supercontinuum vector beams

0546012 - FZÚ 2022 RIV US eng J - Journal Article
Shoji, M. - Wakayama, T. - Ishida, H. - Kowa, H. - Sakaue, K. - Miura, Taisuke - Higashiguchi, T.
Single-shot multispectral birefringence mapping by supercontinuum vector beams.
Applied Optics. Roč. 59, č. 23 (2020), s. 7131-7138. ISSN 1559-128X. E-ISSN 2155-3165
Institutional support: RVO:68378271
Keywords : SC vector beam analysis * multispectral birefringence mapping * scanning laser microscope
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 1.980, year: 2020
Method of publishing: Limited access
https://doi.org/10.1364/AO.393419

We demonstrated a single-shot, multispectral birefringence mapping by use of a supercontinuum (SC) vector beam. The vector beam, which was generated by a pair of axially symmetric wave plates, leads to angularvariant polarization modulation to divide birefringence properties of a sample substrate into Fourier space. This strategy allows multispectral birefringence mapping from a single-shot image captured by a multispectral imaging detector. For SC vector beam analysis, we also compensated the retardance error of the axially symmetric wave plate in the superbroadband spectrum. Resolutions of retardance and azimuthal angle were 0.4◦ and 0.2◦ , respectively, and the spatial resolution was 60 µm. Those results are expected to provide us a singleshot, multispectral birefringence mapping with high spatial resolution as compared with using a scanning laser microscope. Our proposal has extendibility to develop high-speed, high-resolution birefringence imaging spectroscopy.
Permanent Link: http://hdl.handle.net/11104/0322603